...ok guys this is really bugging me. any help would be greatly appreciated.

p-3500

a-4000

r-.0525

quarterly rate.so n=4

so the question is asking for the number of years. so t is my unknown variable.

i set it up like this.

4000= 3500 (1+.O525/4)^4t

so far so good ryt? yes, to the above point

4000=3545.9375 ^4t this step is incorrect ... divide by 3500 first